3D Pop Up Birthday Cards, Pop Up Music and Light Birthday Card, Birthday Card with Lights and Music Charming Appearance: Open the LED birthday card, and the cute birthday cake will appear in front of you, giving the recipient a surprise. Light and Music Design: Open the 3D birthday card to about 90 degrees to play happy birthday music and LED lights. If the card is not closed, the music will continue to play for more than 5 hours. The card comes with an envelope for easy storage and protection. Create Pleasant Atmosphere: The three-dimensional birthday card is a great decoration at the party, which can enhance your relationship with family and friends and create a relaxing and comfortable atmosphere. Widely Used: The three-dimensional birthday cards are hand-assembled and beautifully crafted, and can be used as anniversary decorations. They are perfect for boys and girls, women and men, and even pets, and help you express your good wishes to your loved ones. Unique Gift: You can write beautiful wishes on the musical birthday card and give it to family, friends or colleagues. These cards are easy to carry, easy to mail or store, and do not take up too much space.